Fly.io update

No web terminal and dedicated IP fix
More to be done on the first point...

docs/troubleshoot/fly.io.md

@@ -8,6 +8,11 @@ If it's too complex for you the web terminal is an easy alternative.
 
 ## Use a web terminal
 
+```{warning}
+The web terminal feature was removed from Fly.io.
+Documentation will be updated to use a computer and flyctl.
+```
+
 a) In a new browser tab, [sign-in](https://fly.io/app/sign-in) with your fly.io account,then open a web [terminal](https://fly.io/terminal).
 If you just closed the terminal, you might need to wait some time (20 minutes) before you can open a new session (the message below appears).
 
@@ -188,3 +193,35 @@ Your app should now only be running on one machine. Check [here](https://fly.io/
 <img src="/vendors/fly.io/img/FlyT09.png" width="600px" />
 
 </br>
+
+## Obtain a free shared IP
+
+Apps migrated from Heroku will use a dedicated IP billed $1.90/month.
+
+If you want to run your Nightscout site in Fly.io for free, you will need to release the IP and request a shared IP.
+
+Follow the instructions below. The IP 137.66.11.78 and the site name `example-ns` are examples, yours will be different. Use your own IP and site name.
+
+```
+$ flyctl auth login  # This will open a browser and ask me to authenticate 
+
+$ flyctl app list
+NAME    OWNER           STATUS          PLATFORM        LATEST DEPLOY
+example-ns   personal        deployed        machines        2023-05-26T07:24:51Z
+
+
+$ flyctl ips list -a example-ns
+VERSION IP                      TYPE    REGION  CREATED AT
+v4      137.66.11.78            public  global  2022-09-13T14:17:58Z
+v6      3b09:8280:1::3:723c     public  global  2022-09-13T14:18:00Z
+
+$ flyctl ips release 137.66.11.78 -a example-ns
+Released 137.66.11.78 from example-ns
+
+$ flyctl ips allocate-v4 --shared -a example-ns
+v4      <new-ip-assigned> shared  global
+```
+
+You do not need to remember your new IP, just continue using your site name as before: https://yoursitename.fly.dev
+
+</br>

docs/vendors/fly.io/migrate.md

@@ -120,6 +120,13 @@ n) If you open this URL you will see it's replicating real time your Heroku Nigh
 
 </br>
 
+```{warning}
+Migrated sites will use a dedicated IP, that is a billable feature ($1.90/month).
+You will need to release the address and get a shared one. See [here](/troubleshoot/fly.io.md#obtain-a-free-shared-ip) how to proceed.
+```
+
+</br>
+
 ## Step 2 - Remove the Heroku webhook to Fly.io
 
 a) By defaut Fly.io has made a link to Heroku so that whatever happens in Heroku (updates, variables changes, etc...) is mirrored to Fly.io.  

docs/vendors/fly.io/new_user.md

@@ -67,6 +67,11 @@ Nightscout should run for free within the [allowances](https://fly.io/docs/about
 
 ## Step 2: Open the web terminal
 
+```{warning}
+The web terminal feature was removed from Fly.io.
+Documentation will be updated to use a computer and flyctl.
+```
+
 a) In a new browser tab, open the [terminal](https://fly.io/terminal). Sign-in with the account you created above, if requested.</br>
 If you just closed the terminal, you might need to wait some time (20 minutes) before you can open a new session (the message below appears).
 

docs/vendors/railway/new_user.md

@@ -22,9 +22,10 @@ The free plan has been removed Jul 3rd for new users and Aug 1st for existing us
 You can easily create a new Railway Nightscout site with a [MongoDB Atlas](/vendors/mongodb/atlas) database or a [Railway MongoDB database](/vendors/railway/database).
 
 **Pros**:  
-* Nightscout fits in the 5$/month Hobby account  
-* Easy to deploy or migrate an existing site from Heroku  
-* Simple to use and troubleshoot  
+* Nightscout fits in the 5$/month Hobby account
+* Easy to deploy or migrate an existing site from Heroku
+* Simple to use and troubleshoot
+* You can host several Nightscout sites within a single Hobby account
 * Can use a native Railway MongoDB database ($)  
 
 **Cons**: